Glass
Shattering Experiment II

With
the mindset that bigger = better, I went out to buy
some cheap-ass wineglasses from the local dollar shop.
The ones I bought look pretty nasty - the shape just
isn't quite right, not even for a shiraz or two.

Being
a bigger wineglass than the one used in the first experiment,
I had expected the resonant frequency to be lower. And
so it was, resonating at precisely 979 Hz. A medium
volume test with a paper strip on the glass confirmed
this: the paper jumped off.

This
time I decided a 6W amp was not enough - I really wanted
this thing to blast open! So I cut up a length of oxygen
free copper cable to hook into the next room, where
a 150W amplifier (kindly donated by Charles) was ready
and waiting.

Earplugs,
closed doors and a 'blast box' ensured I didn't lose
one of my senses that day.

I turned
the volume on the amp about halfway, slid the preamp
volume to near maximum, and pressed GENERATE!

Seeing as
I was in another room with two closed doors between
me and the death zone, I couldn't exactly see the action.
My video camera did though, and you'll want to check
out the video... the wineglass promptly EXPLODED.